{# backend/templates/admin.html #}
{% extends "base.html" %}

{% block content %}
<div class="container mt-4">
  <div class="card">
    <div class="card-body">
      <h3 class="card-title">Admin Page</h3>

      {% with messages = get_flashed_messages(with_categories=true) %}
        {% if messages %}
          <div class="mt-2">
            {% for cat, msg in messages %}
              <div class="alert alert-{{ cat }} alert-dismissible fade show" role="alert">
                {{ msg }}
                <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
              </div>
            {% endfor %}
          </div>
        {% endif %}
      {% endwith %}

      <div class="table-responsive">
        <table class="table table-striped align-middle">
          <thead>
            <tr>
              <th style="width:60px">ID</th>
              <th>Username</th>
              <th>Email</th>
              <th style="width:80px">Active</th>
              <th style="width:260px">Action</th>
            </tr>
          </thead>
          <tbody>
            {% for user in users %}
            <tr>
              <td>{{ user.id }}</td>
              <td>{{ user.username }}</td>
              <td>{{ user.email }}</td>
              <td>
                {% if user.is_active %}
                  <span class="badge bg-success">Yes</span>
                {% else %}
                  <span class="badge bg-secondary">No</span>
                {% endif %}
              </td>
              <td>
                {% if not user.is_active %}
                  <a href="{{ url_for('admin.approve_user', user_id=user.id) }}" class="btn btn-success btn-sm me-1">Approve</a>
                {% endif %}
                <a href="{{ url_for('admin.delete_user', user_id=user.id) }}"
                   class="btn btn-danger btn-sm me-1"
                   onclick="return confirm('사용자 {{ user.username }} (ID={{ user.id }}) 를 삭제하시겠습니까?');">
                   Delete
                </a>

                <!-- Change Password 버튼: 모달 오픈 -->
                <button type="button"
                        class="btn btn-primary btn-sm"
                        data-user-id="{{ user.id }}"
                        data-username="{{ user.username | e }}"
                        data-bs-toggle="modal"
                        data-bs-target="#changePasswordModal">
                  Change Password
                </button>
              </td>
            </tr>
            {% endfor %}
          </tbody>
        </table>
      </div>
    </div>
  </div>
</div>

{# ========== Change Password Modal ========== #}
<div class="modal fade" id="changePasswordModal" tabindex="-1" aria-labelledby="changePasswordModalLabel" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered">
    <div class="modal-content">
      <form id="changePasswordForm" method="post" action="">
        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
        <div class="modal-header">
          <h5 class="modal-title" id="changePasswordModalLabel">Change Password</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
        </div>

        <div class="modal-body">
          <div class="mb-2">
            <small class="text-muted">User:</small>
            <div id="modalUserInfo" class="fw-bold"></div>
          </div>

          <div class="mb-3">
            <label for="newPasswordInput" class="form-label">New password</label>
            <input id="newPasswordInput" name="new_password" type="password" class="form-control" required minlength="8" placeholder="Enter new password">
            <div class="form-text">최소 8자 이상을 권장합니다.</div>
          </div>

          <div class="mb-3">
            <label for="confirmPasswordInput" class="form-label">Confirm password</label>
            <input id="confirmPasswordInput" name="confirm_password" type="password" class="form-control" required minlength="8" placeholder="Confirm new password">
            <div id="pwMismatch" class="invalid-feedback">비밀번호가 일치하지 않습니다.</div>
          </div>
        </div>

        <div class="modal-footer">
          <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
          <button id="modalSubmitBtn" type="submit" class="btn btn-primary">Change Password</button>
        </div>
      </form>
    </div>
  </div>
</div>

{# ========== 스크립트: 모달에 사용자 정보 채우기 + 클라이언트 확인 ========== #}
{% block scripts %}
  {{ super() }}
  <script>
    (function () {
      // Bootstrap 5을 사용한다고 가정. data-bs-* 이벤트로 처리.
      const changePasswordModal = document.getElementById('changePasswordModal');
      const modalUserInfo = document.getElementById('modalUserInfo');
      const changePasswordForm = document.getElementById('changePasswordForm');
      const newPasswordInput = document.getElementById('newPasswordInput');
      const confirmPasswordInput = document.getElementById('confirmPasswordInput');
      const pwMismatch = document.getElementById('pwMismatch');

      if (!changePasswordModal) return;

      changePasswordModal.addEventListener('show.bs.modal', function (event) {
        const button = event.relatedTarget; // 버튼 that triggered the modal
        const userId = button.getAttribute('data-user-id');
        const username = button.getAttribute('data-username') || ('ID ' + userId);

        // 표시 텍스트 세팅
        modalUserInfo.textContent = username + ' (ID: ' + userId + ')';

        // 폼 action 동적 설정: admin.reset_password 라우트 기대
        // 예: /admin/users/123/reset_password
        changePasswordForm.action = "{{ url_for('admin.reset_password', user_id=0) }}".replace('/0/', '/' + userId + '/');
        // 폼 내부 비밀번호 필드 초기화
        newPasswordInput.value = '';
        confirmPasswordInput.value = '';
        confirmPasswordInput.classList.remove('is-invalid');
        pwMismatch.style.display = 'none';
      });

      // 폼 제출 전 클라이언트에서 비밀번호 일치 검사
      changePasswordForm.addEventListener('submit', function (e) {
        const a = newPasswordInput.value || '';
        const b = confirmPasswordInput.value || '';
        if (a.length < 8) {
          newPasswordInput.focus();
          e.preventDefault();
          return;
        }
        if (a !== b) {
          e.preventDefault();
          confirmPasswordInput.classList.add('is-invalid');
          pwMismatch.style.display = 'block';
          confirmPasswordInput.focus();
          return;
        }
        // 제출 허용 (서버측에서도 반드시 검증)
      });
    })();
  </script>
{% endblock %}
{% endblock %}